US 12,410,065 B2
Porous electrochromic niobium oxide films and methods of making and use thereof
Delia Milliron, Austin, TX (US); Gary Ong, Temecula, CA (US); Camila Saez Cabezas, Austin, TX (US); and Hsin-Che Lu, Austin, TX (US)
Assigned to BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM, Austin, TX (US)
Appl. No. 17/283,089
Filed by BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM, Austin, TX (US)
PCT Filed Oct. 8, 2019, PCT No. PCT/US2019/055154
§ 371(c)(1), (2) Date Apr. 6, 2021,
PCT Pub. No. WO2020/076798, PCT Pub. Date Apr. 16, 2020.
Claims priority of provisional application 62/742,556, filed on Oct. 8, 2018.
Prior Publication US 2021/0340022 A1, Nov. 4, 2021
Int. Cl. C01G 33/00 (2006.01); B82Y 40/00 (2011.01); C09K 9/00 (2006.01); G02F 1/155 (2006.01)
CPC C01G 33/00 (2013.01) [C09K 9/00 (2013.01); G02F 1/155 (2013.01); B82Y 40/00 (2013.01); C01P 2002/77 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/16 (2013.01); C01P 2004/64 (2013.01); C01P 2006/14 (2013.01); C01P 2006/40 (2013.01); G02F 2201/12 (2013.01); G02F 2202/36 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A porous electrochromic niobium oxide film comprising:
a plurality of niobium oxide nanocrystals,
wherein the plurality of niobium oxide nanocrystals comprise niobium oxide having a formula NbOx where x represents an average Nb: O ratio in the niobium oxide and where x is from 2 to 2.6,
wherein the plurality of niobium oxide nanocrystals are substantially plate-shaped such that the plurality of niobium oxide nanocrystals comprise a plurality of plate-shaped niobium oxide nanocrystals, and
wherein the plurality of plate-shaped niobium oxide nanocrystals have an average length of from 0.5 nm to 200 nm, an average width of from 0.5 nm to 95 nm, and an average thickness of from 0.5 nm to 20 nm.